1
Add your images
Drag a whole folder onto the drop zone or click to browse. JPG, PNG and WebP files are all welcome, and you can add as many as you need.
100% Free · No Upload · Private
The Fastest Bulk Image Compressor That Never Touches a Server
Compress images online free, in your browser. Drag in a whole folder, tune the quality, and download smaller JPG, PNG and WebP files in seconds.
No signup
Files never leave your device
Unlimited use
The Tool
Compress Multiple Images at Once
Drop your images below. Everything runs locally — nothing is uploaded, and there is no waiting on a server.
Drag & drop images here
or click to browse your files
Supports JPG · PNG · WebP — batch upload as many as you like
How It Works
Three Steps to Smaller Images
No accounts, no plugins, no uploads. Just open the page and compress.
2
Choose your settings
Slide the quality control to balance size and clarity, pick an output format, and optionally set a max width to resize large photos on the fly.
3
Download instantly
Grab each optimized image with one click, or download the whole batch as a single ZIP. See exactly how much space you saved on every file.
Features
Everything You Need to Optimize Images
A serious batch image compressor with the privacy of an offline app and the convenience of a website.
Batch Processing
Compress dozens of images in one go. Drop them all in and each is optimized in sequence without freezing your browser.
100% Private
Your files are processed entirely on your device. Nothing is ever uploaded, stored, or seen by us — true privacy by design.
No File Limits
No caps, no daily quotas, no paywalls. Compress as many images as you like, as often as you like, forever.
Multiple Formats
Compress JPG, PNG and WebP, and convert freely between them. Modern WebP output can shrink files even further.
Adjustable Quality
A precise quality slider lets you dial in the exact balance between the smallest file and the sharpest image.
Free Forever
No trial, no credit card, no account. This image optimizer for websites is free to use and always will be.
Supported Formats
Compress JPG, PNG & WebP
The three formats that make up almost every image on the modern web.
JPG
Best for photographs. High compression with barely visible quality loss at 75–85.
PNG
Ideal for logos, screenshots and graphics that need sharp edges or transparency.
WebP
Modern format with excellent compression. Convert to WebP for the smallest web-ready files.
Why Compress Images With a Bulk Image Compressor?
Images are the heaviest thing on most web pages. A single unoptimized photo straight from a phone camera can weigh five or six megabytes, and a gallery of them can bring a page to a crawl. A bulk image compressor solves this at the source by shrinking every file before it ever reaches your site, so your pages load faster, rank better, and cost less to serve. Instead of editing photos one at a time in heavy desktop software, you can compress multiple images at once in a single pass and move on with your day.
Faster page speed and better Core Web Vitals
Page speed is no longer a nice-to-have. Visitors abandon slow pages within seconds, and Google's Core Web Vitals — particularly Largest Contentful Paint — are directly tied to how quickly your biggest images render. When you reduce image file size, that hero banner or product shot arrives sooner, the layout settles faster, and the experience simply feels snappier. On mobile connections the difference is dramatic: a page that shipped four megabytes of images might ship four hundred kilobytes instead, loading in a fraction of the time. Using a batch image compressor before you publish is one of the highest-leverage performance wins available, and it takes seconds rather than hours.
SEO benefits that compound over time
Search engines reward fast, well-optimized pages. Lighter images improve the crawl budget search bots spend on your site, reduce bounce rates, and lift the speed signals that feed into rankings. An image optimizer for website content also helps you keep every page under control as your library grows — a blog with three hundred posts and heavy images is a very different beast to crawl than the same blog with lean, compressed media. Pair compression with descriptive file names and alt text and you have images that are both light and discoverable. The gains are cumulative: every optimized page nudges your whole domain toward better performance.
Lower bandwidth and hosting costs
Every byte you serve costs something, whether that is CDN bandwidth, storage, or your visitors' mobile data plans. Compressing images before upload can cut your outbound bandwidth by seventy to ninety percent, which matters enormously for a busy store or a high-traffic blog. It also keeps your media library manageable, your backups smaller, and your WordPress uploads folder from ballooning out of control. When you compress JPG, PNG and WebP files up front, you pay that cost once and everyone downstream benefits.
Privacy you can actually trust
Most online compressors quietly upload your files to a remote server, process them there, and send them back. That is fine for a meme, but risky for product mockups, client work, medical images, or anything confidential. This tool is different: it uses the browser's built-in Canvas API to compress images online free without a single byte ever leaving your computer. There is no upload step, no queue, and no copy of your files sitting on someone else's server. You can even disconnect from the internet after the page loads and it will keep working. If you want to learn more about how we built it and the philosophy behind it, read our About page, and if you have questions you can always get in touch.
Who It's For
Built for People Who Publish a Lot of Images
If your work lives on the web, lighter images make everything you do faster.
Bloggers
Keep every post lightweight so readers stay and search engines reward your speed. Optimize a whole article's images in one batch.
E-commerce Sellers
Product pages full of photos load faster and convert better. Compress entire catalogs of listing images before they go live.
WordPress Users
Shrink images before uploading to keep your media library lean and your site scoring well on speed tests — no bulky plugin required.
YouTube Creators
Compress thumbnails and channel art so they upload quickly and stay crisp without eating into your storage.
Web Designers
Deliver client sites that pass performance audits. Batch-compress every asset in a mockup or template before handoff.
FAQ
Frequently Asked Questions
Everything you might want to know about compressing images here.
Yes, completely. There is no signup, no watermark, no daily cap and no paid tier. You can compress as many images as you want, whenever you want, at no cost.
No. All compression happens locally in your browser using the HTML5 Canvas API. Your files never leave your device, which is why the tool is completely private and works even offline once the page has loaded.
There is no fixed limit. You can drag in dozens of images at once and the tool processes them one after another so your browser stays responsive. Download them individually or all together as a ZIP.
You can compress JPG, PNG and WebP images. Using the output format dropdown you can also convert between these formats — for example turning a heavy PNG into a much smaller WebP file.
You are in full control. The quality slider sets the trade-off between file size and clarity. For most photos a value between 75 and 85 cuts the file size dramatically while staying visually identical to the original.
Yes. Enter a maximum width in pixels and any image wider than that value is scaled down proportionally before it is compressed. This is perfect for shrinking huge camera photos down to web-friendly dimensions.
Absolutely. The interface is fully responsive and works in any modern mobile browser. Very large batches will process faster on a desktop simply because of the extra processing power.
Never. Because everything runs client-side, we have no way to see, store or track the images you compress. You can read the full details on our Privacy Policy page.
Ready to Shrink Your Images?
Compress multiple images at once, free and private, right now. No signup required.
Compress Images Now